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Description
Isocoma Menziesii, commonly known as coastal goldenbush or Menzies’ goldenbush, is a perennial shrub that is native to California and northern Baja California. It belongs to the family Asteraceae and is characterized by its yellow flowers that bloom from late summer to early fall. The plant typically grows up to 2-4 feet tall and 2-3 feet wide and has a moderate growth rate. It is a popular choice for coastal gardens due to its drought tolerance and ability to attract pollinators.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Isocoma |
Appearance
The foliage of Isocoma Menziesii is green and slightly hairy, with narrow leaves that are up to 2 inches long. The flowers are small and yellow, with a diameter of about 1/2 inch. They bloom in clusters at the tips of the branches and are a favorite of bees and butterflies. The plant has a bushy growth habit, with multiple stems that grow outward from a central point. It can be pruned to maintain its shape and promote dense growth.
Care Guide
Isocoma Menziesii is a low-maintenance plant that thrives in well-draining soil and full sun. It is drought-tolerant and does not require regular watering once established. Fertilizer is not necessary but can be applied in the spring to promote growth. The plant is hardy in USDA zones 8-10 and can tolerate temperatures as low as 20°F. Pruning can be done in the late fall or early spring to remove dead or damaged stems.
Common Pests & Diseases
Isocoma Menziesii is generally resistant to pests and diseases. However, it may be susceptible to root rot if planted in soil that is too wet. Aphids and spider mites may occasionally infest the plant, but can be controlled with insecticidal soap or neem oil spray. Powdery mildew may also occur in humid conditions, but can be prevented by providing good air circulation around the plant.
Habitat
Isocoma Menziesii is native to coastal areas of California and northern Baja California, where it grows in sandy or rocky soils. It is a common plant in chaparral and coastal sage scrub habitats, where it provides food and habitat for bees, butterflies, and other pollinators. The plant is also cultivated in gardens and landscaping throughout its range due to its attractive appearance and drought tolerance.
Question and Answer
Q: Can Isocoma Menziesii be grown in containers?
A: Yes, Isocoma Menziesii can be grown in containers as long as they are large enough to accommodate the plant’s root system and provide good drainage.
Q: How often should Isocoma Menziesii be watered?
A: Isocoma Menziesii is drought-tolerant and does not require regular watering once established. Watering once every 2-3 weeks during the growing season is usually sufficient.
Q: Does Isocoma Menziesii attract pollinators?
A: Yes, Isocoma Menziesii is a favorite of bees, butterflies, and other pollinators due to its yellow flowers.
Q: How tall does Isocoma Menziesii grow?
A: Isocoma Menziesii typically grows up to 2-4 feet tall and 2-3 feet wide.
Related Plants
- Isocoma acradenia (Goldenbush)
- Isocoma menziesii var. vernonioides (Vernon Goldenbush)
- Isocoma veneta (Coastal Goldenbush)
References
- “Isocoma Menziesii.” Las Pilitas Nursery. Accessed 17 September 2021. https://www.laspilitas.com/nature-of-california/plants/714–isocoma-menziesii.
- “Isocoma Menziesii.” Calflora. Accessed 17 September 2021. https://www.calflora.org/cgi-bin/species_query.cgi?where-taxon=Isocoma+menziesii.
- “Isocoma Menziesii.” San Marcos Growers. Accessed 17 September 2021. https://www.smgrowers.com/products/plants/plantdisplay.asp?plant_id=1505.
